单项选择题
A.about marine pollution prevention
B.covering marine protection of life
C.about marine
D.about ship and port security
单项选择题 At an unsheltered anchorage the chief engineer officer shall consult with the master whetheror not to maintain an underway watch“An underway watch” means（）
单项选择题 When the engine room is put in standby condition, the engineer in charge of the watch need not to（）
单项选择题 The responsibilities of the engineer officer in charge of the watch do not include （）